//
// ExtensionElementCollection.cs
//
// Author:
//	Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2006 Novell, Inc.  http://www.novell.com
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Configuration;
using System.Net;
using System.Net.Security;
using System.Reflection;
using System.Security.Cryptography.X509Certificates;
using System.Security.Principal;
using System.IdentityModel.Claims;
using System.IdentityModel.Policy;
using System.IdentityModel.Tokens;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Description;
using System.ServiceModel.Diagnostics;
using System.ServiceModel.Dispatcher;
using System.ServiceModel.MsmqIntegration;
using System.ServiceModel.PeerResolvers;
using System.ServiceModel.Security;
using System.Runtime.Serialization;
using System.Text;
using System.Xml;

namespace System.ServiceModel.Configuration
{
	[ConfigurationCollection (typeof (ExtensionElement),
		 AddItemName = "add",
		 RemoveItemName = "remove",
		 ClearItemsName = "clear",
		 CollectionType = ConfigurationElementCollectionType.BasicMap)]
	public class ExtensionElementCollection
		 : ServiceModelConfigurationElementCollection<ExtensionElement>, ICollection, IEnumerable
	{
		Dictionary<Type, ExtensionElement> _lookup;

		Dictionary<Type, ExtensionElement> Lookup {
			get {
				if (_lookup == null) {
					_lookup = new Dictionary<Type, ExtensionElement> ();
					for (int i = 0; i < Count; i++) {
						ExtensionElement extension = this [i];
						Type type = Type.GetType (extension.Type);
						_lookup.Add (type, extension);
					}
				}
				return _lookup;
			}
		}

		protected override bool ThrowOnDuplicate {
			get {
				return base.ThrowOnDuplicate;
			}
		}

		protected override object GetElementKey (ConfigurationElement element) {
			return ((ExtensionElement) element).Name;
		}

		protected override void BaseAdd (ConfigurationElement element) {
			base.BaseAdd (element);
		}

		protected override void BaseAdd (int index, ConfigurationElement element) {
			base.BaseAdd (index, element);
		}

		private void AddLookup (ConfigurationElement element) {
			ExtensionElement extension = (ExtensionElement) element;
			Type type = Type.GetType (extension.Type);
			_lookup.Add (type, extension);
		}

		internal string GetConfigurationElementName (Type type) {
			if (Lookup.ContainsKey (type))
				return Lookup [type].Name;
			return null;
		}
	}

}
